Improving coal-liquid quality by heavy-distillate recycle. [Product boiling below 590/sup 0/F]

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6161832

Anderson, R P; Freel, J

Recent runs in the Merriam Laboratory continuous coal liquefaction unit show that heavy distillate can be recycled to extinction; i.e., a product boiling entirely below 590/sup 0/F (or other selected boiling point) is feasible. Distillate yield was not reduced. Gas make was unaffected. And hydrogen consumption increased only slightly, in keeping with the generally higher hydrogen content of light products. Total distillate yield (C/sub 5/-590/sup 0/F) was 56 wt %, MAF coal in runs with subbituminous coal from the Amax Belle Ayr mine. The product endpoint is well below 700/sup 0/F, the temperature above which coal distillates appear to become genotoxic; and the product was shown to be free of mutagenic activity in the Ames test. Other studies suggest the product should be more readily upgraded than full-range (C/sub 5/-900/sup 0/F) distillate.

• Research Organization: Gulf Research and Development Co., Pittsburgh, PA (USA)
• DOE Contract Number: AC22-82PC50001
• OSTI ID: 6161832
• Report Number(s): CONF-830549-1; ON: DE83011351
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
016000 -- Coal
Lignite
& Peat-- Health & Safety
BENCH-SCALE EXPERIMENTS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
DATA
DISTILLATES
ENERGY SOURCES
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUELS
INFORMATION
LIQUEFACTION
LIQUIDS
MATERIALS
MUTAGEN SCREENING
NUMERICAL DATA
RECYCLING
SCREENING
SUBBITUMINOUS COAL
THERMOCHEMICAL PROCESSES
YIELDS